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OMR-style practice · NEET UG
BIO-2023-CG3-143
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ZOO · BIO-2023-CG3-143
Zoology
Section B
Which one of the following statements is NOT correct?
A
The amount of some toxic substances of industrial waste water increases in the organisms at successive trophic levels
B
The micro-organisms involved in biodegradation of organic matter in a sewage polluted water body consume a lot of oxygen causing the death of aquatic organisms
C
Algal blooms caused by excess of organic matter in water improve water quality and promote fisheries
D
Water hyacinth grows abundantly in eutrophic water bodies and leads to an imbalance in the ecosystem dynamics of the water body
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